linux-kernel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH v6 0/8] Tegra20 External Memory Controller driver
@ 2018-10-21 18:30 Dmitry Osipenko
  2018-10-21 18:30 ` [PATCH v6 1/8] dt: bindings: tegra20-emc: Document interrupt property Dmitry Osipenko
                   ` (7 more replies)
  0 siblings, 8 replies; 19+ messages in thread
From: Dmitry Osipenko @ 2018-10-21 18:30 UTC (permalink / raw)
  To: Thierry Reding, Peter De Schrijver, Jonathan Hunter, Prashant Gaikwad
  Cc: linux-tegra, linux-clk, devicetree, linux-kernel

Changelog:

v6:
        - Driver now handles "refresh request overflow" interrupt by
          reporting error message.

        - EMC rate is set during driver initialization to ensure that clock
          divider is in a proper state.

v5:
        - Fixed wrong EMC clock divider type in the "Turn EMC clock gate into
          divider" patch. It is a Tegra's fractional 7.1 divider and not a
          simple integer divider. Peter, please take a look at the change.

v4:
        - Fixed "bad of_node_put()" error which was revealed by enabling
          some extra kernel debug config options.

        - The "emc-table" DT nodes are now parsed starting from the "emc"
          node instead of the DT root.

        - Adjusted code comment in the "Turn EMC clock gate into divider"
          patch as was suggested by Stephen Boyd to the v3.

v3:
        - Handle "nvidia,use-ram-code" DT property, its handling was missed
          in the previous versions.

        - Honor "emc-tables" DT node naming which is explicitly specified
          in the DT binding, also was missed in the previous versions.

        - Two new DT binding patches: one adds the EMC clock property,
          other relocates the binding doc file to the appropriate directory.
          One new patch that adds EMC clock property to the DTS file.

        - Addressed v2 review comments from Thierry Reding. Driver does not
          preserve backwards compatibility with older device tree binding.

        - The PLL_M and PLL_P clocks are kept internal to the driver because
          after some more considering I couldn't find a really good reason why
          these clocks should be in the device tree.

        - Some minor cleanups and fixes in the drivers code.

v2:
        - Minor code cleanups like consistent use of writel_relaxed instead
          of non-relaxed version, reworded error messages, etc.

        - Factored out use_pllm_ud bit checking into a standalone patch for
          consistency.

Dmitry Osipenko (8):
  dt: bindings: tegra20-emc: Document interrupt property
  dt: bindings: tegra20-emc: Document clock property
  dt: bindings: Move tegra20-emc binding to memory-controllers directory
  ARM: dts: tegra20: Add interrupt entry to External Memory Controller
  ARM: dts: tegra20: Add clock entry to External Memory Controller
  clk: tegra20: Turn EMC clock gate into divider
  clk: tegra20: Check whether direct PLLM sourcing is turned off for EMC
  memory: tegra: Introduce Tegra20 EMC driver

 .../nvidia,tegra20-emc.txt                    |   4 +
 arch/arm/boot/dts/tegra20.dtsi                |   2 +
 drivers/clk/tegra/clk-tegra20.c               |  46 +-
 drivers/memory/tegra/Kconfig                  |  10 +
 drivers/memory/tegra/Makefile                 |   1 +
 drivers/memory/tegra/tegra20-emc.c            | 591 ++++++++++++++++++
 6 files changed, 644 insertions(+), 10 deletions(-)
 rename Documentation/devicetree/bindings/{arm/tegra => memory-controllers}/nvidia,tegra20-emc.txt (95%)
 create mode 100644 drivers/memory/tegra/tegra20-emc.c

-- 
2.19.0


^ permalink raw reply	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2018-10-25 18:36 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-10-21 18:30 [PATCH v6 0/8] Tegra20 External Memory Controller driver Dmitry Osipenko
2018-10-21 18:30 ` [PATCH v6 1/8] dt: bindings: tegra20-emc: Document interrupt property Dmitry Osipenko
2018-10-25 14:25   ` Thierry Reding
2018-10-21 18:30 ` [PATCH v6 2/8] dt: bindings: tegra20-emc: Document clock property Dmitry Osipenko
2018-10-25 14:26   ` Thierry Reding
2018-10-21 18:30 ` [PATCH v6 3/8] dt: bindings: Move tegra20-emc binding to memory-controllers directory Dmitry Osipenko
2018-10-25 14:27   ` Thierry Reding
2018-10-21 18:30 ` [PATCH v6 4/8] ARM: dts: tegra20: Add interrupt entry to External Memory Controller Dmitry Osipenko
2018-10-25 14:28   ` Thierry Reding
2018-10-25 14:28   ` Thierry Reding
2018-10-21 18:30 ` [PATCH v6 5/8] ARM: dts: tegra20: Add clock " Dmitry Osipenko
2018-10-25 14:29   ` Thierry Reding
2018-10-21 18:30 ` [PATCH v6 6/8] clk: tegra20: Turn EMC clock gate into divider Dmitry Osipenko
2018-10-25 14:30   ` Thierry Reding
2018-10-21 18:30 ` [PATCH v6 7/8] clk: tegra20: Check whether direct PLLM sourcing is turned off for EMC Dmitry Osipenko
2018-10-25 14:31   ` Thierry Reding
2018-10-21 18:30 ` [PATCH v6 8/8] memory: tegra: Introduce Tegra20 EMC driver Dmitry Osipenko
2018-10-25 14:38   ` Thierry Reding
2018-10-25 18:36     ` Dmitry Osipenko

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).